<template>
	<view class="login-container">
		<uni-icons type="contact-filled" size="100" color='#afafaf'></uni-icons>
    <button type="primary" class="btn-login" open-type="getUserInfo" @getuserinfo="getUserInfo">一键登录</button>
    <text class="tips-text">登录后尽享更多权益</text>
	</view>
</template>

<script>
  import {mapMutations,mapState} from 'vuex'
	export default {
		data() {
			return {
				token:"Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1aWQiOjEyLCJpYXQiOjE1MjU0MDIyMjMsImV4cCI6MTUyNTQ4ODYyM30.g-4GtEQNPwT_Xs0Pq7Lrco_9DfHQQsBiOKZerkO-O-o"
			};
		},
    computed:{
      ...mapState('m_user',['redirectInfo'])
    },
    methods:{
      ...mapMutations('m_user',['updateUserInfo','updateToken','updateRedirectInfo']),
      // 用户授权之后 获取用户的基本信息
      getUserInfo(e){
        // getUserInfo:fail auth deny 为取消授权
        if(e.detail.errMsg==='getUserInfo:fail auth deny') return uni.$showMsg('你取消了登录授权！')
        // "getUserInfo:ok" 为确认授权
        // 用户信息存储到vuex中
        this.updateUserInfo(e.detail.userInfo)
        // 获取code值
        this.getToken(e.detail)
      },
      async getToken(info){
        // 获取code对应的值
        const [err,res] = await uni.login().catch(err=>err)
        // login:ok表示登录成功
        if(err || res.errMsg!=='login:ok') return uni.$showMsg('登录失败！')
        // 准备登录的参数
        const query = {
          code:res.code,
          encryptedData:info.encryptedData,
          iv:info.iv,
          rawData:info.rawData,
          signature:info.signature
        }
       //  // 获取接口
       // const {data:loginResult} = await uni.$http.post('/api/public/v1/users/wxlogin',query)
       // // console.log(loginResult)
       // if(loginResult.meta.status !== 200) return uni.$showMsg('登录失败！')
       // 直接将token保存到vuex中
       // 登录接口无法使用 直接再本地自定义一个token数据
       this.updateToken(this.token)
       this.navigateBack();
      },
      // 
      navigateBack(){
        // 如果redirectInfo存在且openType值为swithTab 就跳转到购物车页面
        if(this.redirectInfo && this.redirectInfo.openType === 'switchTab'){
          uni.switchTab({
            url:this.redirectInfo.from,
            complete: () => {
              this.updateRedirectInfo(null)
            }
          })
        }
      }
    }
	}
</script>

<style lang="scss">
  .login-container{
    height: 750rpx;
    background-color: #f8f8f8;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
    &::after{
      content: '';
      display: block;
      width: 100%;
      height: 40px;
      background-color: white;
      position: absolute;
      bottom: 0;
      left: 0;
      border-radius: 100%;
      transform: translateY(50%);
    }
    .btn-login{
      width: 90%;
      border-radius: 100px;
      margin: 15px 0;
      background-color: #c00000;
    }
    .tips-text{
      font-size: 12px;
      color: gray;
    }
  }
</style>
